Moral censorshipDue to obscenity or moral questionability
Pornography, books and films
Military censorshipConfidentiality of information to protect from military enemyTo counter espionage
Political censorshipGovernment holds information from citizensTo prevent rebellion
Religious censorshipMaterial objectionable to a certain faith
Corporate censorshipMedia outlets publish no information that portrays business partners poorly

Gray situations and questions to consider:Political censorship in wartime?Is refusal to teach Creationism in schools censorship?Violation of freedom of speech?
Censorship and restrictions on videogames: should some games be outlawed or restricted due to obscene material?“Now if we can identify certain evils, and if advocacy of those evils seems likely to encourage people to commit them, then why should we not take the next and logical step and prohibit such advocacy… Must the authorities be helpless to restrain the source of the evil?” – Thomas Stork